How many molecules are contained in a pentanal (C5H10O) sample with a mass of 5.27 g?

Q: What is the number of molecules present in 22.65 grams of NazS203?

A: Mole interms of particles :  1 mole of any substance has avogadro number of particles  1 mol =…

Q: How many molecules are in sample? 85.26 g CCl4

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Q: a. How many grams of barium carbonate, BaCO3, are present in 1.73 moles of this compound? grams b.…

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Q: Determin the number of moles of compound within 0.25 g of glycine, CH;NO2

A: Given :- mass of glycine = 0.25 g  To calculate :- no. of moles of glycine

Q: 3- calculate the number of (O) atom in 1.5 g of glucose (C6H1206).

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: a 50.0 g sample of lead oxide PbO2 contains how many moles?

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Q: How many grams of K2CrO4 are found in a sample containing 0.186 moles of this compound?

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Q: How many hydrogen atoms are in 5.0 g of citric acid (CóHgO7)?

A: Please have a look into the solution:

Q: How many moles of O are present in 7.89 g of acetic acid?

A: In  1 mole of acetic acid there are  2 moles of oxygen,              CH3COOH = 12 + 3*1 + 12+ 2*16+…

Q: You have 275 g. of CCl3F How many moles is this?

A: The name of the given compound is trichlorofluoromethane with molecular formula CCl3F. Given that,…

Q: How many molecules are in sample? 22.1 g O2

A: 1 molecular mass of gas contains 1 mole molecules for oxygen. Oxygen has 32 g molecular mass. Number…

Q: How many hydrogen atoms are present in 75.0 of g H2O?

A: Mass of water, H2O = 18.016 g/mol Mass of water = 75 g Moles of water, H2O = Mass Molar mass=75…

Q: How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 92.1 grams?

A: Before going to find out moles of tetracycline, We first find out molecular weight of C22H24N2O8 ,…

Q: How many nitrogen atoms are present in 18.05g of ammonium nitrate?

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Q: How many moles is found in a 94.6 gram sample of sodium acetate, NaC2H302?

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Q: How many moles are in 484.25 g of ammonium phosphate [(NH4)3PO4]?

A: According to mole concept, molar mass of a substance is equal to its 1 mole. Therefore, first of…

Q: Cinnamic alcohol is C9H10O. Calculate the percent composition by mass of C,H, and O in cinnamic…

A: Given :-  a) molecular formula of cinnamic alcohol = C9H10O  Mass of cinnamic alcohol = 0.942 g  To…

Q: How many moles of lithium phosphate (Li3PO4) are contained in 77.7 g of lithium phosphate?

A: We will use the formula: Number of moles = Given mass/Molar mass

Q: How many moles of (NH4)3PO4 are contained in 0.917 g of this compound?

A: Given that: Mass of (NH4)3PO4 = 0.917g Moles of (NH4)3PO4 = ?

Q: Calculate the molar mass of each compound. C,H,: g/mol C„H3,02: g/mol

A: Molar mass of a compound calculated by adding the standard atomic masses of atoms present in that…

Q: How many moles of atoms are contained in 15.5 g of Br2 ?

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Q: How many moles of carbon dioxide (CO2CO2) are in 34.9 g34.9 g of the compound?

A: Given:Mass of CO2 = 34.9 gMolar mas of CO2 = 44.01 g/mol.

Q: how many moles of S atom are contained in 2.5mol of H2S

A: We need to find the amount of constitute of H2S, i.e. how many moles of S and H are present in H2S…

Q: Which has more hydrogen atoms? A mole of CH4 or two moles of H2? Provide an explanation.

A: Interpretation: Which has more hydrogen atoms, a mole of CH4 or two moles of H2 is to be determined.

Q: analysis shows the compound is composed only of 88.81% C and 11.19% H by mass. What is the molecular…

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Q: Calculate how many molecules there are in 16.4 g HF.

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Q: How many moles of water, H2O, are present in 75.0 g of H2O?

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Q: How many moles are in a sample of Saccharin with a mass of 35.31 grams? Saccharin is an artificial…

A: We know that, number of moles can be expressed as,

Q: How many molecule are in 0.200 mole C13H18O2

A: Given, moles of C13H18O2 = 0.200 mole Number of molecules are in 0.200 mole of C13H18O2 = ?

Q: how many molecules are in the sample 2.0 g H2O

A: Answer to the following question is given as -

Q: How many moles of oxygen atoms are present in a sample that contains 3.24 moles of NO2?

A: 1 mol of NO2 contains 2 moles of Oxygen atoms.  Given moles of NO2 = 3.24

Q: how many molecules are in 20.3 grams of carbon tetrachloride?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many molecules are in 363 g of CBr4?

A: Mass of CBr4 = 363 g Molar mass of CBr4 molecule =  331.63 g/mol

Q: Determine the molecular formula for a compound with 92.3% carbon and 7.70% hydrogen with a molecular…

A: Given, A compound in which,percentage of Carbon =92.3 %percentage of hydrogen =7.70 %molecular mass…

Q: How many molecules are in sample? 119.78 g C4H10

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Q: How many moles of Sodium thiosulfate, Na2S2O3, are present in 31.7 g of Sodium thiosulfate?

A: A numerical problem based on mole concept that is to be accomplished.

Q: How many moles of N2O5 are present in 190.9 g?

A: Molar mass of N2O5 = 108.01 g / mol

Q: A mothball, composed of naphthalene (C10 H8 ), has a mass of 1.50 g. Part A How many naphthalene…

A: 1 mole of any atom or molecule contains Avogadro's number of atoms or molecules. Avogadro's number =…

Q: What is the percent composition by mass of carbon in the chloroform CHCl 3 ?

A: Given: compound: CHCl3 molar mass of C = 12.01 amu molar mass of CHCl3 = 119.37 amu

Q: How many molecules are present in 18.5 g of CH3CH2OH?

A: The mole concept is used for explaining the concentration of atoms molecules or ions in a solution.…

Q: How many moles of Sodium thiosulfate, Na2S2O3, are present in 31.7 g of Sodium thiosulfate.

A: The number of moles of a substance is the mass of that substance upon its molar mass.

Q: How many molecules are present in 52 mg of glucose (C6H12O6)?

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Q: how many molecules of nitrgoen, N2 are found in 78.2g of N2? The atomic mass of nitrogen is…

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Q: How many total atoms are in 0.940 g0.940 g of P2O5

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: compound

A: Molar mass of Fe2O3 = 2 • ( molar atomic mass of Fe ) + 3 • ( molar atomic mass of Oxygen atom )…

Q: The number of molecules in 1.5x10-3 g of C3H6O

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Q: How many moles are in 48 g of Fe2O3? Use 56 g/mol as the molecular weight of Fe.

A: The moles is defined as the mass of substance devided by the molar mass of substance.This means…

Q: How many molecules of nitrogen trifluoride are present in 4.03 moles of this compound?…

A: 1 mole of any particle is defined as that contains avogadro number of particles. Avogadro number is…

Q: Consider a 3.570 g sample of C4H10. How many molecules are in this sample?

A: Mass of C4H10 = 3.570 g       Molecular mass of butane (C4H10)=…